Module 4 · Windows Event Log Forensics — The IR Reference

Manish Garg
Manish Garg Associate of (ISC)² · RingSafe
May 13, 2026
3 min read
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Why this module exists. Windows Event Logs are the densest forensic data source on a Windows endpoint or domain controller. Every logon, every process launch, every PowerShell command, every credential operation leaves a trace — if you know which event ID to look for. This module is the IR-grade event-log reference: what to query, how to find lateral movement, and how to spot the cleanup attackers do.

Why this module exists. The defender’s biggest leverage in any Windows IR is the event log. The attacker’s biggest leverage in the same IR is knowing which events to clear. This module gives you the canonical event IDs, the queries that surface attacker activity, and the gaps that tell you something was cleaned.

The seven event logs that matter

Log Why
Security Logons, account changes, privilege use
System Service starts/stops, time changes, system events
Application Application errors, but also AV alerts, exploitation crashes
Microsoft-Windows-PowerShell/Operational PowerShell module / script-block logging
Microsoft-Windows-Sysmon/Operational Process creation, network connections, file creation — gold
Microsoft-Windows-TaskScheduler/Operational Scheduled task creation — common persistence
Microsoft-Windows-TerminalServices-LocalSessionManager/Operational RDP session connections, even when network logon fails to log
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